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/*
* Copyright 2015, The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "GateKeeperService"
#include <utils/Log.h>
#include "IGateKeeperService.h"
namespace android {
const android::String16 IGateKeeperService::descriptor("android.service.gatekeeper.IGateKeeperService");
const android::String16& IGateKeeperService::getInterfaceDescriptor() const {
return IGateKeeperService::descriptor;
}
status_t BnGateKeeperService::onTransact(
uint32_t code, const Parcel& data, Parcel* reply, uint32_t flags) {
switch(code) {
case ENROLL: {
CHECK_INTERFACE(IGateKeeperService, data, reply);
uint32_t uid = data.readInt32();
ssize_t currentPasswordHandleSize = data.readInt32();
const uint8_t *currentPasswordHandle =
static_cast<const uint8_t *>(data.readInplace(currentPasswordHandleSize));
if (!currentPasswordHandle) currentPasswordHandleSize = 0;
ssize_t currentPasswordSize = data.readInt32();
const uint8_t *currentPassword =
static_cast<const uint8_t *>(data.readInplace(currentPasswordSize));
if (!currentPassword) currentPasswordSize = 0;
ssize_t desiredPasswordSize = data.readInt32();
const uint8_t *desiredPassword =
static_cast<const uint8_t *>(data.readInplace(desiredPasswordSize));
if (!desiredPassword) desiredPasswordSize = 0;
uint8_t *out = NULL;
uint32_t outSize = 0;
int ret = enroll(uid, currentPasswordHandle, currentPasswordHandleSize,
currentPassword, currentPasswordSize, desiredPassword,
desiredPasswordSize, &out, &outSize);
reply->writeNoException();
reply->writeInt32(1);
if (ret == 0 && outSize > 0 && out != NULL) {
reply->writeInt32(GATEKEEPER_RESPONSE_OK);
reply->writeInt32(0);
reply->writeInt32(outSize);
reply->writeInt32(outSize);
void *buf = reply->writeInplace(outSize);
memcpy(buf, out, outSize);
delete[] out;
} else if (ret > 0) {
reply->writeInt32(GATEKEEPER_RESPONSE_RETRY);
reply->writeInt32(ret);
} else {
reply->writeInt32(GATEKEEPER_RESPONSE_ERROR);
}
return NO_ERROR;
}
case VERIFY: {
CHECK_INTERFACE(IGateKeeperService, data, reply);
uint32_t uid = data.readInt32();
ssize_t currentPasswordHandleSize = data.readInt32();
const uint8_t *currentPasswordHandle =
static_cast<const uint8_t *>(data.readInplace(currentPasswordHandleSize));
if (!currentPasswordHandle) currentPasswordHandleSize = 0;
ssize_t currentPasswordSize = data.readInt32();
const uint8_t *currentPassword =
static_cast<const uint8_t *>(data.readInplace(currentPasswordSize));
if (!currentPassword) currentPasswordSize = 0;
bool request_reenroll = false;
int ret = verify(uid, (uint8_t *) currentPasswordHandle,
currentPasswordHandleSize, (uint8_t *) currentPassword, currentPasswordSize,
&request_reenroll);
reply->writeNoException();
reply->writeInt32(1);
if (ret == 0) {
reply->writeInt32(GATEKEEPER_RESPONSE_OK);
reply->writeInt32(request_reenroll ? 1 : 0);
reply->writeInt32(0); // no payload returned from this call
} else if (ret > 0) {
reply->writeInt32(GATEKEEPER_RESPONSE_RETRY);
reply->writeInt32(ret);
} else {
reply->writeInt32(GATEKEEPER_RESPONSE_ERROR);
}
return NO_ERROR;
}
case VERIFY_CHALLENGE: {
CHECK_INTERFACE(IGateKeeperService, data, reply);
uint32_t uid = data.readInt32();
uint64_t challenge = data.readInt64();
ssize_t currentPasswordHandleSize = data.readInt32();
const uint8_t *currentPasswordHandle =
static_cast<const uint8_t *>(data.readInplace(currentPasswordHandleSize));
if (!currentPasswordHandle) currentPasswordHandleSize = 0;
ssize_t currentPasswordSize = data.readInt32();
const uint8_t *currentPassword =
static_cast<const uint8_t *>(data.readInplace(currentPasswordSize));
if (!currentPassword) currentPasswordSize = 0;
uint8_t *out = NULL;
uint32_t outSize = 0;
bool request_reenroll = false;
int ret = verifyChallenge(uid, challenge, (uint8_t *) currentPasswordHandle,
currentPasswordHandleSize, (uint8_t *) currentPassword, currentPasswordSize,
&out, &outSize, &request_reenroll);
reply->writeNoException();
reply->writeInt32(1);
if (ret == 0 && outSize > 0 && out != NULL) {
reply->writeInt32(GATEKEEPER_RESPONSE_OK);
reply->writeInt32(request_reenroll ? 1 : 0);
reply->writeInt32(outSize);
reply->writeInt32(outSize);
void *buf = reply->writeInplace(outSize);
memcpy(buf, out, outSize);
delete[] out;
} else if (ret > 0) {
reply->writeInt32(GATEKEEPER_RESPONSE_RETRY);
reply->writeInt32(ret);
} else {
reply->writeInt32(GATEKEEPER_RESPONSE_ERROR);
}
return NO_ERROR;
}
case GET_SECURE_USER_ID: {
CHECK_INTERFACE(IGateKeeperService, data, reply);
uint32_t uid = data.readInt32();
uint64_t sid = getSecureUserId(uid);
reply->writeNoException();
reply->writeInt64(sid);
return NO_ERROR;
}
case CLEAR_SECURE_USER_ID: {
CHECK_INTERFACE(IGateKeeperService, data, reply);
uint32_t uid = data.readInt32();
clearSecureUserId(uid);
reply->writeNoException();
return NO_ERROR;
}
case REPORT_DEVICE_SETUP_COMPLETE: {
CHECK_INTERFACE(IGateKeeperService, data, reply);
reportDeviceSetupComplete();
reply->writeNoException();
return NO_ERROR;
}
default:
return BBinder::onTransact(code, data, reply, flags);
}
};
}; // namespace android
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